Tektronix VM700T User manual

User Manual

VM700T Video Measurement Set

Option 11 PAL Measurements

070-9649-02

User Manual

VM700T Video Measurement Set

Option 11 PAL Measurements

070-9649-02

This document supports firmware version 2.10e and

above.

are protected by United States copyright laws and international treaty provisions.

Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the

Rights in Technical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the

Commercial Computer Software – Restricted Rights clause at FAR 52.227-19, as applicable.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes

that in all previously published material. Specifications and price change privileges reserved.

Printed in the U.S.A.

Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Portions of the software in this instrument are copyrighted by Stanford University.

VM700T Video Measurement Set Option 11 PAL Measurements

i

Table of Contents

Preface vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Getting Started

Measure Mode

Bar LineTime 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bar Line Time Menu 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bounce 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bounce Menu 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Typical Measurement Results 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Burst Frequency 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Burst Frequency Menu 2–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting the Reference Burst Frequency 2–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ChromLum GainDelay 2–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ChromLum GainDelay Menu 2–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chrominance AMPM 2–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chrominance AMPM Menu 2–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chrominance NonLinearity 2–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chrominance NonLinearity Menu 2–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ColorBar 2–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pre-defined Colour Bar References 2–32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ColourBar Menu 2–32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DGDP (Differential Gain/Differential Phase) 2–37. . . . . . . . . . . . . . . . . . . . . . . . . . .

DGCP Display 2–37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DGDP Menu 2–38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GroupDelay SinX_X 2–42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Group Delay & Gain Display 2–43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Group Delay SinX_X Menu 2–44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H_Blank 2–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H_Blank Display 2–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H_Blank Menu 2–50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H_Timing 2–51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

H_Timing Menu 2–52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ICPM (Incidental Carrier Phase Modulation) 2–53. . . . . . . . . . . . . . . . . . . . . . . . . . .

ICPM Display 2–53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ICPM Menu 2–55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Jitter 2–59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Jitter Menu 2–60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Jitter Long_Time 2–61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Jitter Long_Time Menu 2–62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

K_Factor 2–64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

K_Factor Menu 2–64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents

ii

VM700T Video Measurement Set Option 11 PAL Measurements

Defining Your Own Graticule 2–70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Level Meter 2–73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Level Meter Display 2–73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Level Meter Menu 2–74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting Up a New Measurement Window 2–81. . . . . . . . . . . . . . . . . . . . . . . . . . .

Line Frequency 2–83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Line Frequency Menu 2–83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Luminance NonLinearity 2–85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Luminance NonLinearity Menu 2–86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MultiBurst 2–90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MultiBurst Menu 2–90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Noise Spectrum 2–95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Noise Spectrum Menu 2–95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SCH_Phase 2–101. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SCH Phase Measurement 2–102. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dual SCH Phase Measurements 2–102. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SCH_Phase Menu 2–103. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ShortTime Distortion 2–107. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ShortTime Distortion Menu 2–108. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Defining Your Own Graticule 2–112. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TwoField 2–115. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TwoField Menu 2–116. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V_Blank 2–121. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V_Blank Menu 2–123. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Video Standard 2–125. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Auto Mode

Signal-to-Noise Auto Mode Measurements 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

Appendix A: PAL Measurement Specifications A-1. . . . . . . . . . . . . . . . . . . . .

Measure Mode A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Auto Mode A-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index

Table of Contents

VM700T Video Measurement Set Option 11 PAL Measurements

iii

List of Figures

Figure 2–1: Bar LineTime display 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–2: Bar LineTime menu tree 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–3: Bar LineTime special position display 2–6. . . . . . . . . . . . . . . . .

Figure 2–4: Bounce Measurement display 2–8. . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–5: Bounce menu tree 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–6: Burst Frequency display 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–7: Burst Frequency menu tree 2–15. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–8: ChromLum GainDelay display 2–17. . . . . . . . . . . . . . . . . . . . . . .

Figure 2–9: ChromLum GainDelay menu tree 2–18. . . . . . . . . . . . . . . . . . . . .

Figure 2–10: ChromLum GainDelay special position display 2–20. . . . . . . . .

Figure 2–11: Chrominance AMPM display 2–22. . . . . . . . . . . . . . . . . . . . . . .

Figure 2–12: Chrominance AMPM menu tree 2–23. . . . . . . . . . . . . . . . . . . . .

Figure 2–13: Chrominance NonLinearity display 2–26. . . . . . . . . . . . . . . . . . .

Figure 2–14: Chrominance NonLinearity menu tree 2–27. . . . . . . . . . . . . . . .

Figure 2–15: Chrominance NonLinearity special position display 2–29. . . . . .

Figure 2–16: ColourBar display 2–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–17: ColourBar menu tree 2–33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–18: ColourBar special position display 2–35. . . . . . . . . . . . . . . . . . .

Figure 2–19: DGDP display 2–37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–20: DGDP menu tree 2–38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–21: DGDP Special Position display 2–40. . . . . . . . . . . . . . . . . . . . . .

Figure 2–22: Group Delay & Gain Combined Pulse display 2–42. . . . . . . . . .

Figure 2–23: Group Delay SinX_X BothPulse response display 2–43. . . . . . .

Figure 2–24: Group Delay Sin x/x menu tree 2–44. . . . . . . . . . . . . . . . . . . . . .

Figure 2–25: Group Delay & Gain special position display 2–47. . . . . . . . . . .

Figure 2–26: H_Blank display 2–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–27: H_Blank menu tree 2–50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–28: H_Timing display 2–51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–29: H_Timing menu tree 2–52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–30: ICPM display; no ICPM errors present 2–54. . . . . . . . . . . . . . . .

Figure 2–31: ICPM display; large ICPM error present 2–55. . . . . . . . . . . . . . .

Figure 2–32: ICPM menu tree 2–56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–33: Jitter display 2–59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–34: Jitter menu tree 2–60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–35: Jitter Long_Time spectrum display 2–61. . . . . . . . . . . . . . . . . . .

Figure 2–36: Jitter Long_Time waveform display 2–62. . . . . . . . . . . . . . . . . .

Figure 2–37: Jitter Long_Time menu tree 2–63. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–38: K_Factor display with top level menu 2–64. . . . . . . . . . . . . . . . .

Figure 2–39: K_Factor menu tree 2–65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–40: K_Factor measurement right reference clamped 2–66. . . . . . . . .

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VM700T Video Measurement Set Option 11 PAL Measurements

Figure 2–41: K_Factor special position display 2–70. . . . . . . . . . . . . . . . . . . .

Figure 2–42: Make Graticule display with lower graticule selected 2–71. . . . .

Figure 2–43: Level Meter display 2–73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–44: Level Meter menu tree 2–74. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–45: Display Limits menu showing undefined

measurement points 2–75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–46: Measure Position display for locating the measurement

points on a signal 2–76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–47: Display Position display showing absolute measurement

referenced to 714 mV as 100% 2–79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–48: Level Meter display as a result of the setup shown

in Figure 2–47 2–80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–49: Line Frequency display 2–83. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–50: Line Frequency menu tree 2–83. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–51: Luminance NonLinearity display 2–85. . . . . . . . . . . . . . . . . . . .

Figure 2–52: Luminance NonLinearity menu tree 2–86. . . . . . . . . . . . . . . . . .

Figure 2–53: Luminance NonLinearity special position display 2–89. . . . . . .

Figure 2–54: MultiBurst display 2–90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–55: MultiBurst menu tree 2–91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–56: MultiBurst special position display 2–93. . . . . . . . . . . . . . . . . . .

Figure 2–57: Noise Spectrum display 2–95. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–58: Noise Spectrum menu tree 2–96. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–59: Noise Spectrum Input Gate display 2–99. . . . . . . . . . . . . . . . . . .

Figure 2–60: Timing relationships for Dual SCH_Phase measurements 2–101.

Figure 2–61: SCH_Phase display 2–102. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–62: Dual SCH display with Burst Relative Phase and

Sync Relative Timing bar graphs 2–103. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–63: SCH_Phase menu tree 2–104. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–64: SCH_Phase full field display 2–105. . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–65: Rescaled SCH_Phase full field display 2–106. . . . . . . . . . . . . . . .

Figure 2–66: ShortTime Distortion display 2–107. . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–67: ShortTime Distortion menu tree 2–109. . . . . . . . . . . . . . . . . . . . .

Figure 2–68: ShortTime Distortion special position display 2–112. . . . . . . . . . .

Figure 2–69: Make Graticule display with inner graticule selected 2–113. . . . .

Figure 2–70: TwoField display 2–115. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–71: TwoField menu tree 2–116. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–72: TwoField special position display 2–119. . . . . . . . . . . . . . . . . . . .

Figure 2–73: V_Blank full display 2–121. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–74: V_Blank equalizer pulse display 2–122. . . . . . . . . . . . . . . . . . . . .

Figure 2–75: V_Blank broad pulse display 2–122. . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–76: V_Blank V-sync display 2–123. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–77: V_Blank menu tree 2–123. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents

VM700T Video Measurement Set Option 11 PAL Measurements

v

List of Tables

Table 2–1: Measure Mode Measurements and Signal Qualities 2–1. . . . . . .

Table 2–2: Bar Line Time Measurement 2–3. . . . . . . . . . . . . . . . . . . . . . . . .

Table 2–3: Pre-defined Colour Bar reference values 2–32. . . . . . . . . . . . . . . .

Table 3–1: Auto Mode Measurements 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–2: Signal-to-Noise Auto Mode Measurements 3–5. . . . . . . . . . . . . .

Table A-1: Bar Line Time A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-2: Bounce A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-3: Burst Frequency A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-4: Chrominance to Luminance A-2. . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-5: Chrominance Noise A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-6: Chrominance Nonlinearity A-3. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-7: ColourBar A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-8: Differential Gain and Phase A-3. . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-9: Frequency Response and Group Delay A-3. . . . . . . . . . . . . . . . .

Table A-10: Horizontal Blanking A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-11: Horizontal Timing A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-12: Incidental Carrier Phase Modulation A-4. . . . . . . . . . . . . . . . .

Table A-13: Jitter A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-14: K-Factor A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-15: Level Meter A-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-16: Line Frequency A-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-17: Luminance Nonlinearity A-5. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-18: MultiBurst A-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-19: Noise Spectrum A-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-20: SCH Phase A-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-21: TwoField A-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-22: Vertical Blanking A-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-23: VITS ID A-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-24: Line Blanking Timing Measurements A-7. . . . . . . . . . . . . . . . .

Table A-25: Field Blanking Timing Measurements A-7. . . . . . . . . . . . . . . . .

Table A-26: Other Timing Measurements A-7. . . . . . . . . . . . . . . . . . . . . . . .

Table A-27: Amplitude and Phase Measurements A-7. . . . . . . . . . . . . . . . . .

Table A-28: Frequency Response Measurements A-9. . . . . . . . . . . . . . . . . .

Table A-29: Waveform Distortion Measurements A-9. . . . . . . . . . . . . . . . . .

Table A-30: Low Frequency Error A-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-31: Noise Measurements A-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A-32: Incidental Carrier Phase Modulation A-10. . . . . . . . . . . . . . . . . .

Table of Contents

vi

VM700T Video Measurement Set Option 11 PAL Measurements

vii

Preface

The VM700T Video Measurement Set Option 11 (PAL Measurements) gives

you access to the complete set of measurements available for PAL standard video

signals.

The manual contents are arranged in the following order:

Getting Started provides a brief overview of Measure mode and Auto mode

measurement operation. Refer to the VM700T Option 01 & Option 11 User

Manual for more complete operating instructions for the VM700T Video

Measurement Set.

Measure Mode provides the detailed operation of each of the Measure mode

measurements in alphabetical order of the measurement’s name.

Auto Mode provides a table of the Auto mode measurements, the units of the

measurement results, and a description of how the measurements are made.

Appendix A: PAL Measurement Specifications provides tables giving the

measurement accuracy and range of the Measure mode and Auto mode measure-

ments.

Preface

viii

VM700T Video Measurement Set Option 11 PAL Measurements

Getting Started

VM700T Video Measurement Set Option 11 PAL Measurements

1–1

Getting Started

The VM700T Option 11 (PAL) gives you access to a large variety of interactive

(Measure mode) and automatic (Auto mode) measurements.

Measure mode measurements are user-selectable, interactive, graphical applica-

tions that make measurements on video signals. The Measure Mode section of

this manual starting on page 2–1 describes each Measure mode measurement.

Pressing the Measure button on the VM700T front panel displays Measure

mode, showing the names of available measurement groups: VM700 Diagnos-

tics, Video Measurements, Video Options, and Audio Options (if options are

available). When one of the measurement groups has been selected, the available

measurements in that group are displayed.

NOTE. If your measurement set has Option 1S installed, your instrument can be

set to Analog Mode or Digital Mode. You can use either the Analog Video or SDI

soft keys in the Measure mode display or the Mode soft key in the Configure

menu to toggle between the two modes. You must set the measurement set to

Analog Mode before you can access the analog measurement functions listed in

this manual.

Rotating the control knob scrolls the Measure mode display to show more

measurements.

Touching the name of a measurement in the Measure mode display begins

execution of that measurement and unfreezes the display if it was frozen.

Pressing any major mode button (for example, Waveform, Vector, Picture,

Measure, or Auto) when a measurement runs ends that measurement and returns

to the appropriate major mode display.

Auto mode measurements are measurements taken when the VM700T is in Auto

mode, wherein it continuously repeats a set of user-selectable measurements and

reports when a measurement falls outside user-defined limits. Auto mode is

usually used to monitor video signals and alert someone when one or more

parameters drifts out of pre-defined limits. The Auto Mode section starting on

page 3–1 describes each Auto mode measurement.

Pressing the Auto button on the VM700T front panel displays the Auto mode

measurements that will be performed continuously until the VM700T is taken

out of Auto mode.

The VM700T may be programmed for remote operation. See the VM700T

RS-232 Interface Programmer Manual for information on programming and

operating the VM700T remotely.

Getting Started

1–2

VM700T Video Measurement Set Option 11 PAL Measurements

The specifications for the PAL measurements of the VM700T Option 11, in both

Measure and Auto modes, are found in Appendix A: PAL Measurement Specifica-

tions.

Measure Mode

VM700T Video Measurement Set Option 11 PAL Measurements

2–1

Measure Mode

Measure Mode gives you a large selection of interactive, graphical measurements

that you can perform on video signals. To access Measure Mode, press the

Measure button on the VM700T front panel.

Table 2–1 shows the available Measure Mode measurements and the signal

qualities measured. The measurements are presented in alphabetical order in this

section.

Table 2–1: Measure Mode Measurements and Signal Qualities

Timing Measurements

Burst Frequency Burst frequency error

H_Blank Horizontal blanking over field

H_Timing All horizontal timing parameters

Jitter H Sync Jitter within a frame

Jitter Long_Time Frame Jitter

Line Frequency Line frequency error

SCH_Phase SubCarrier-to-Horizontal (SCH) Phase

V_Blank Vertical interval timing and pulse positions

Nonlinear Distortion Measurements

Chrominance NonLinearity Chrominance nonlinear phase & gain

DGDP Differential gain & phase

Luminance NonLinearity Differential luminance

Linear Distortion Measurements

Bar LineTime Line time distortion

Bounce Long time distortion

ChromLum GainDelay Chrominance-to-luminance gain & delay

inequality

GroupDelay SinX_X Frequency response, group delay (both with

SinX/X signal)

K_Factor Short Time Distortion (K

2T

pulse/bar ratio)

MultiBurst Frequency response (with MultiBurst signal)

TwoField Field time distortion

Measure Mode

2–2

VM700T Video Measurement Set Option 11 PAL Measurements

Table 2–1: Measure Mode Measurements and Signal Qualities (Cont.)

Noise Measurements

Chrominance AMPM Chrominance noise (AM & PM components)

Noise Spectrum Signal-to-noise ratio (various weighting filters

available)

Miscellaneous

ColourBar From colour bar signal: luminance level,

chrominance level, chrominance phase

ICPM Incidental Carrier Phase Modulation

Level Meter Amplitude difference between two points

Bar LineTime

Bar LineTime measures bar and sync amplitudes, as well as line time distortion.

The Bar LineTime display (Figure 2–1) plots the bar signal level on the y-axis,

and time on the x-axis. The default y-axis level labeled “100%” is determined

from the difference between the bar top, or level of the bar signal at the center of

the bar (for example, the time halfway between the 50% rising edge and 50%

falling edge times of the bar) and the black-level reference position of the signal.

Both the bar top position and the black-level reference position can be adjusted

using soft keys on the Special Position submenu of the Acquire soft key.

Measure Mode

VM700T Video Measurement Set Option 11 PAL Measurements

2–3

Figure 2–1: Bar LineTime display

Numerical readouts provide measurement results in mV, %, and msec, as

appropriate. Table 2–2 describes the readouts.

Table 2–2: Bar Line Time Measurement

Measurement Description

Bar Level (ref. b1) Bar top amplitude relative to the Black Level Reference

(b1) level.

Bar Level (ref. Back Porch) Bar top amplitude relative to the back porch.

Sync Level Sync tip amplitude relative to the back porch.

Sync to Bar Top Bar Level (ref. Back Porch) plus Sync Level value.

LineTime Dist. Percentage of maximum deviation from the bar level.

Bar Tilt (Rec. 569) Percentage of difference at the end points, which are

measured 1 s after the 50% level of the rising edge and

1 s before the 50% level of the falling edge. A positive

number means that the point near the falling edge is

higher than the point near the rising edge.

Bar Width

Width in s of the bar from the 50% levels of the rising

and falling edges.

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Tektronix VM700T User manual

Tektronix VM700T User manual

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